Invalid item! - Work Bench Blocking

[Eddy63]

When a crafting queue changes its recipe, the input slot keeps whatever remains were used from the previous crafting recipe. This is often blocking the next recipe from starting, forcing the player to manually free up that slot.
This is preventing automisation of crafting different things on repeat (like different kinds of food, different components for skeleton repair kit etc.)

If the workbench gets the "invalid item!" warning that specific input slot should be tagged for a hauling job to be freed up, until the "invalid item!"-state disappears. The assigned worker should bring whatever item clogs the input slot to its respective storage container. Opening up crafting for new recipes. Please guys, this is an age old problem.